Explore Scientific AR 102 Finder Scope Riser

A 20mm riser to lift the AR 102 finderscope above the tube to allow easier viewing. Without it the finder barely clears the enormous dew shield. I also extended the slit for the small stop screw in the telescope mounting shoe to allow this riser to be added or removed without taking off the tube rings since there is not enough room to do that. I added a stop to prevent it from sliding out. I drilled it and tapped it for 8-32 nylon screws. I added a solid back to the top shoe to keep the fin